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Physics
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Physics
Total Internal Reflection
Physics
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Total Internal Reflection
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Total Internal Reflection
Reflection of light rays at the border of two medium when the angle of incidence in an optically denser medium is greater than the critical angle
The critical angle, c
The maximum angle of incidence before the total internal reflection can occur
Value of critical angle
90 degree
Condition for total internal reflection
Light moves from denser → less dense medium
Value of critical angle for internal reflection
Incident ray angle is always bigger than critical angle
An example of total internal reflection
Fibre optic
The natural phenomena involving critical angle
Mirage
Type of reflection in prism periscope
Prism periscope use total internal reflection
Angle from normal line to the reflected ray
90 degrees is calculated from the normal line to the reflected ray
The condition that causes total internal reflection to happen
Total internal reflection happens when the light ray bend at the edge of the medium
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